Launcher Issue.

I am on Windows 10 64 bit. I show I am online that everything is up to date. I have restarted the launder a few times but whenever I try to launch I get a large red exclamation point over the loading logo (Picture attached) and then everything crashes back to the launcher screen. When I click on “Run Repair Tool” nothing happens. When I look in my Control Panel I can’t find the launcher to try a repair or uninstall/reinstall. Options?